Playing-ball.



No.709,4||. PatentedSeptQlG, 1902.

L E; KEMPSHA'LL.

PLAYING BALL.

(Application filed May 26, 1902.)

(N0 Mddel.)

I UNITED STATES PATENT OFFICE.

ELEAZER KEMPSHALL, OF BOSTON, MASSACHUSETTS.

PLAYING-BALL.

SPECIFICATION forming part of Iletters Patent No. 709,411, dated September 16, 1902. Application filed May 26, 1902- S erial No. 108,933. No model.)

it consists, substantially,in the improvemen ts hereinafter particularly described.

The invention has reference more especially toplaying-balls such asare employed in golf and similar games; and the principal object of the invention is to provide a seamless ball of this kind capable of withstanding all the usages of the game and one also possessing great capacity to fly under powerful impact, yet rem aining comparatively dead to light blows.

A further object is to provide the body of the ball of increased strength and hardness as well as of a characterin which there is no tendency to cracking or splitting.

The above and additional objects I attain by means substantially such as are illustrated in the accompanying drawings, wherein Figure 1 represents a part-sectional view of a completed ball made in accordance with my present improvements, and Fig. 2 is a windings of the body of the ball.

part-sectional perspective View of a portion of composite cord employed for one of the Fig. 3 is a view, partly in section and partly in dotted lines, representing the ball at one stage of the the centerpiece to asuitable depth or thickness a winding of elastic thread, preferably under tension andin the presence of heat, if desired. I To said envelop or winding I 'thenapply, also to a suitable depth or thickness, at similar envelop or winding of composite cord, and to the latter 1 apply another enpose.

velop or winding of elastic thread, as before, and finally I apply an outer envelop or winding of composite cord in completion of the structure, it being understood that as many of the alternating envelops or windings may be employed as desired. Said envelop-windings of composite cord may also be applied under tension, the said cord comprising in its composition a sheathing or covering of a derivative of pyroXylin, such as celluloid, which is rendered plastic in the presence of heat, so that portions of the cord are made to adhere one to another where they cross. When brought to this stage, the ball structure may be rendered compact and solid by subjecting the same topreliminary compression between dies, although such compression is not essential in all instances; but finally the ball is finished in heated dies for the pur- I thus provide a playing-ball of the character named in which there are no seams present and one also which is highly resistant to blows at all points from the outer surface to the center thereof.

Specific reference being had tothe accompanying drawings, A, Fig. 1, represents a completed ball made in accordance with my present improvements, said ball being seamless and constructed of a spherical center piece 1, preferably of gutta-percha or like ma- ;terial, combined with spherical envelops or applied windings of elastic thread 3 and 4-,

of some modification or derivative of pyroxylin, such as celluloid. An envelop of the elastic thread is first applied to the center piece, the winding being effected, preferably,

under tension and, if desired, in the pres I manner as the first.

I hereinbetore mentioned.

sheathing thereof plastic, and to this envelop thereof I apply an additional envelop of elastic thread wound on as before, to which in turn I apply the final or outer envelop of composite cord, which is also applied in like As before stated, the winding on of said alternating envelops of elastic thread and composite cord is preferably eifected in the presence of heat, which softens the materials of both envelops, and thus the ball structure may be rendered a solid compact mass possessing the qualities I 'may, if desired, subject the ball to a preliminary compression betweendies 10 and 12, (shown in dotted lines, Fig. 3,) which causes the crossed elastic-thread portions and composite-cord portions to interlock by strong adherence to each other and gives to the ball a substantially spherical form. The ball is finally placed between finishing-dies 16 and 18, (indicated at Fig. 4,) whereby the structure is heated and given its final compression, the pressure being held or maintained until the whole body of the ball fully hardens.

Having described my invention, I claim- 1. A playing-ball comprising a spherical center piece, and a bodycomposed of spherical windings of' elastic material and a composite cord. I i

2. Aplaying-ball comprising a spherical center piece, and a body composed of alternating spherical en velops of windings of elastic material and a composite cord.

' 3. A playing-ball comprising a spherical center piece of hard elastic material and a body composed of spherical windings of elastic material and a composite cord.

4. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of alternating spherical envelops of windings of elastic material and a composite cord.

5. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of spherical windings of elastic material and a composite cord.

6. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of alternating spherical envelops of windings of elastic material and a composite cord;

7. A playing-ball comprising a spherical center piece, and a body composed of spherical windings of rubber thread and a composite cord.

8. A playing-ball comprising a spherical center piece, and a body composed of a1ter nating spherical envelops of windings of rubber thread and a composite cord.

9; A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of spherical windings of rubber thread and a composite cord.

10. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of alternating spherical en velops of windings of rubber thread and acomposite cord.

11. A playing-ball comprising a spherical center piece of gutta-percha,.and a body composed of spherical windings'of rubber thread 15. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of spherical windings of elastic material and a cord having a sheathing of a derivative of pyroxylin.

16. A playingball comprising a spherical center piece of hard elastic material, and a body composed of alternating spherical envelops of windings of elastic material and a cord having a sheathing of a derivative of pyroxylin.

17. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of spherical windings of elastic material and a cord having a sheathing ot' a derivative of pyroxylin.

18. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of alternating spherical envelops of windings of elastic material and a cord having a sheathing of a derivative of pyroxylin.

19. A playing-ball comprising a spherical center piece, and a body composed of spherical windings of elastic material and a cord having a sheathing of celluloid. I

20. A playing-ball comprising a spherical center piece, and a body composed of alternating spherical envelops of windings of elastic material and a cord having a sheathing of celluloid. V V I 21. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of spherical windings of elastic material and a cord having a sheathing of celluloid.

22. A playing-ball comprising a spherical center piece of hard elastic material, and a.

body composed of alternating spherical envelops of windings of elastic material and a cord having a sheathing of celluloid.

23. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of spherical windings of elastic material and a cord having a sheathing of celluloid.

24. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of alternating spherical envelops of windings of elastic material and a cord having a sheathing of celluloid.

25. A playing-ball comprising a spherical centerpiece, and a body composed of spherical windings of rubber thread and a cord having a sheathing of plastic material.

26. A playing-ball comprising a spherical center piece, and a body composed of alternating spherical envelops of windings of rubber thread and a cord having a sheathing of plastic material.

27. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of spherical windings of rubber thread and a cord having a sheathing of plastic material.

28. A playing-ball comprising a spherical center piece of hard elastic material, and a body composed of alternating spherical envelops of windings of rubber thread and a cord having a sheathing of plastic material.

29. A playing-ball comprising a spherical center piece of gutta-percha, and a body composed of spherical windings of rubber thread 

